The value of -3x y, for x = 2 and y=3, is -18

-18

Step-by-step explanation:

Here the algebraic number is -3xy

-3xy=-3*x*y

Here we are provided the values of x and y in the question.

x=2

y=3

Hence in this problem we will substitute the values of x and y in above expression which is -3xy  and simplify it to evaluate our

We know that

-3xy=-3*x*y

      = -3 * 2 * 3

      = -6*3

      =  -18

Hence -3xy = - 18

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed